<template>
  <h4>当前求和为:{{ sum }}</h4>
  <button @click="sum++">点我++</button>
  <hr>
  <h2>姓名:{{ name }}</h2>
  <h2>年龄:{{ age }}</h2>
  <h2>薪资:{{ job.j1.salary }}K</h2>
  <button @click="name += '~'">修改姓名</button>
  <button @click="age++">增长年龄</button>
  <button @click="job.j1.salary++">涨薪</button>
</template>

<script>
import { reactive, ref, toRefs,readonly, shallowReadonly } from 'vue'
export default {
  name: 'Demo',
  setup() {
    // 数据
    let sum = ref(0)
    let person = reactive({
      name: '张三',
      age: 18,
      job: {
        j1: {
          salary: 20
        }
      }
    })
    // person = readonly(person)
    // person = shallowReadonly(person)
    // sum = readonly(sum)


    return {
      ...toRefs(person),
      sum
    }
  }

}
</script>

<style>
</style>
